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单词	expansion fastener
释义	DictionarySeeexpansion bolt expansion fastener expansion bolt expansion bolts An anchoring device having an expandable socket that swells as a bolt is tightened into it; used in masonry walls for attaching timber, etc.
随便看	isabu is a bundle of laughs is a bundle of nerves isa bus isabus isac isaca isa card is a card-carrying member is a card-carrying member of is a card-carrying member of something isacb isacc isacc asimov isaccb isaccc isaccd isace isacf is a chapter of accidents isachc isachenko, anatolii isachenko, anatolii grigorevich isachenko, boris isachenko, boris lavrentevich

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